const arithmetic = {
    add(num1, num2) {
        let r1, r2, m
        try {
            r1 = num1.toString().split('.')[1].length
        } catch (e) {
            r1 = 0
        }
        try {
            r2 = num2.toString().split('.')[1].length
        } catch (e) {
            r2 = 0
        }
        m = Math.pow(10, Math.max(r1, r2))
        return (num1 * m + num2 * m) / m
    },
    sub(num1, num2) {
        let r1, r2, m, n
        try {
            r1 = num1.toString().split('.')[1].length
        } catch (e) {
            r1 = 0
        }
        try {
            r2 = num2.toString().split('.')[1].length
        } catch (e) {
            r2 = 0
        }
        n = Math.max(r1, r2)
        m = Math.pow(10, n)
        return Number(((num1 * m - num2 * m) / m).toFixed(n))
    },
    multiply(num1, num2) {
        let m = 0
        const s1 = num1.toString()
        const s2 = num2.toString()
        try {
            m += s1.split('.')[1].length
        } catch (e) {}
        try {
            m += s2.split('.')[1].length
        } catch (e) {}
        return Number(s1.replace('.', '')) * Number(s2.replace('.', '')) / Math.pow(10, m)
    },
    divide(num1, num2) {
        let t1, t2, r1, r2
        try {
            t1 = num1.toString().split('.')[1].length
        } catch (e) {
            t1 = 0
        }
        try {
            t2 = num2.toString().split('.')[1].length
        } catch (e) {
            t2 = 0
        }
        r1 = Number(num1.toString().replace('.', ''))
        r2 = Number(num2.toString().replace('.', ''))
        return (r1 / r2) * Math.pow(10, t2 - t1)
    }
}
export default arithmetic
